Improvement in quartz-crushers



UNITED STATES PATENT UEEICE.

l JOSEPH W. DOWLER, MARTIN VAN BUREN WISKER, AND WILLIAM O.

FERGUSON, OF ST.'LOUIS, 'MISSOURL IMPROVEMENT INIQUA'RTLZ-CRUSHERS.

Specification forming part of Letters Patent No. 155,573, dated October6, 1874; application filed y August 6, 1.874.

To all whom it may concern:

Be it known that We, JOSEPH W. DOWLER, MARTIN VAN BUREN WIsKER, andWlLLIAM C. FERGUSON, all of vSt,` Louis, in the county of St. Louis andState of Missouri, have invented an Improved Quartz-Crusher, of whichthe following is a specification:

The object of this invention is to produce a stamping-mill or crusherthat can be readily constructed and adapted for use, is simple andveffective in operation, and otherwise possesses advantages of noveltyand utility.

In our invention the reciprocating motion is imparted to stamping-rod byits pitman-connections to a crank, which is operated by any suitablepower. The collar to which pitman connects with stamprod operatesadjustably between two yielding or spring devices, and with which saidrod isprovided, the upper spring being for the purpose of imparting tostamper-rod in its descent an accumulated force and velocity, while thelower spring utilizes the recoil of stamper-rod and prevents any lostmotion. The stamper-rod, at upper end, is spirally grooved, in which acollar-pin engages, so as `to impart a spiral 'twist or grinding actionto stamperrod while it is being reciprocated, and all of which will nowvmore fully be described.

Of the drawing, Figure lis a side elevation; Fig. 2, a front elevation.

A is the bed of the machine. Al is a suitable frame to support themounted parts. B is the stamper-rod. This carries at its lower end thestamper B proper. The stamper-rod B reciprocates between the, upper andlower guides or brackets a b, which are secured to frame A'. We providethe stamper-rod with a loose collar, C. This connects to lower end of apitman, G1, the upper end of which connects, at c, to crank C2. (Seefigures.) The crank C2 is firmly secured To one end of crank-shaft d,which has its journals operating in proper journalbearings in the frameA. The opposite end of crank-shaft carries a belt-wheel, d1, which, bybelting d2, connects to driving belt-wheel D. The driving belt-wheel Dis supported in proper bearings and frame, so as to operate its shaft byany suitable power. We further arrange above and below the collar C onthe stamp'er-rod springs or yielding connections E E. The upper end of Eengages the collar e, while the lower end of E similarly engages acollar, e', both said collars being secured to stamper-rod. (Seefigures.) Y

In case, now, the stamper-rod receives its upstroke to highest point,the pitman will also have raised to its highest point, and, in doing so,by means of the collar O acting on the upper spring, E, the same isforcibly compressed. As soon, therefore, as the descent of stamper takesplace, the compressed spring E imparts its tension, force, or power tostamper-rod, thus increasing its velocity and causing it to effect amore powerful impelling crushing action.

This done, and as soon as the upstroke of the stamper-rod takes place,the lower spring, E', performs its function. This function is to utilizethe recoil of the ascending stamper-rod and to impart, hy means of theadjustable collar C, :its derived force to pitman, facilitating itstravel to highest point of lcrank preparatory to said pitman againcausing the stamper to make its descent. Hence, as the recoil of stamperB takes place, it compresses the lower spring,

Ef, which said action of spring is transmitted.

to the collar C and its pitman O1. As the power source operates thecrank G2 sufficiently over its dead-centers, the force of the compressedspring E is readily transmitted to pitman G1, and assists same in makingits upstroke, and thus the recoil of stamperis utilized, and no possibleloss of motion can occur.

It will be noticed that as soonas the recoil In the groove f engages apin, f1, of the collar f2, which is rigidly secured to the upper guide,a, as shown in the flgures. When, therefore, the stamper-rod isreciprocated, there is, at

same time, consequently produced a spiral twist, owing to the engagementof pin f in th'e groove f1. The spiral motion thus imparted at same timeto the reciprocating action of stamper-rod produces the grinding action,which still further breaks the particles to'a smaller degree than theaction simply derived from crushing. Also, said grinding action scoursand otherwise brightens and prepares the particles for a better processof amalgamation.

What We claim is- 1. A stamp-mill or crusher in which the stamper isreciprocated by pitman and crank connections, and in which the descentof stamper is increased in velocity by meanslof a spring, E, and itsrecoil utilized by 4a spring, E', and, further, having a spiral motionderived by a pin, f1, engaging a groove, f, to produce the grinding andscouring action, in the manner herein shown and described.

2. The combination of the spring E', stamp- E E, collar G,pitman G1, andcrank C2, to op-V erate as and for the purpose herein shown anddescribed.

In testimony of said invention we have hereunto set our hands.

JOSEPH W. DOWLER. MARTIN VAN BUREN WISKER. WILLIAM C. FERGUSON.

Witnesses:

WILLIAM W.'HERTHEL, CHAs. F. MEIsNER.

